Building material



ASept- 19, 1944. R. N. WILLIAMS l BUILDING MATERIAL Filed oct. 51, 1942y FIGA.

INVENTOR RN. WILLIAMS ATTORNEY Patented Sept. 19,

UNITED STATES PATENT oEFlcE I BUILDING MATERIAL melma N. williams, st. Louis, Mo, Application oetober 3.1, 1942, serial No. 464,000

y 1 10mm. I(ci.l zo-'si My invention relates to building material and more particularly to an improved panel construction which can be used as roong or siding on a building. One of the objects of my invention isto construct an improved building material panel which will permit easy application of ailexible bitumensaturated fibrous material on a building yand which will also give additional insulation qualities to a wall or like portion of a building.

Another object of my invention is to construct an improved building material panel which will be easily fabricated, economical to the building as to original cos't and cost of which will have a long life.

Other objects of my invention will become apparent from the following description taken in connection with the accompanying drawing in which Figure 1 is a view of a side of a building .showing a complete panel embodying my invention applied theretov with adjacent panels in broken lines; Figure 2 is a sectional view taken on the line -2--2 of Figure 1; Figure 3 is a sectional view taken on the line 3--3 of Figure 2; Figures 4and 5 are sectional views similar to Figure 3 showing modied constructions; and Figure 6 is a sectional view showing a modityd overlapping arrangement between thebottomoi one panel and the top of another panel.

Referring first to Figures 1, 2, and 3, my improved panel generally indicated by the reference numeral I is formed from an outer sheet 2 and a separate inner or backing sheet 3. The outer sheet, which is exposed to the weather, is preferably made of a known construction, being made of a bitumen-saturated brous material commonly known in the trade as felt base roong stock. As best shown in Figure 3, the felt base or equivalent material Lof sheet 2 is completely saturated with a bitumen material such as asphalt and on top of this is placed a coating 5 of bituminous material. This coating maybe covered by small particles or granules 0 of rock, pottery, or the like. The sheet 2, as shown, is made to simulate 'a brick surface in which there are raised portions I to simulatebricks and depressed portions 8 to simulate mortar joints. The sheet is embossed by a rolleiin a well-known manner. The sheet 2 is obtainable on the market in roll form and is primarily employed as application, and

roofing or siding material. .The sheet `2 forming part of my improved panel is cut from a roll of this rooting or siding material.

The sheet I, which forms the backing fof.. the

panel. is relatively stiff and is preferably' made `auch as that from which sheet 2 is out.

board sheeting or over an old surface.

from a fibrous materialzsuch as cardboard. It is desirable that this cardboard or equivalent material be of such construction as to be provided with air containing 'cells although such is not necessary. A suitable cardboard would be what is known as corrugated cardboard and comprising two imperforate sheets 9 and I Ilr of heavy paper having positioned therebetween a corrugated sheet of paper II forming separated air chainbers or compartments I2. This corrugated cardboard is treated so as to be water repellant and resistant to living organisms, a suitable treating substance being a mixture of asphaltsv and waxes although other substances can be v employed. Sheet 3 is thus very light in weight and yet quite rigid. It also will not. deteriorate rapidly due to the treating thereof.

To make panel I, sheets 2 and 3 are adhered together by an adhesive such, as a mixture of asphalts or any other suitable adhesive. The result is a relatively rigid panel which does not have the disadvantages of application as a roll of exible bitumen-saturated fibrous material The backing sheet 3 addsy very little weight to sheet 2 yet it makes it veryA easy to handle vv,and apply to a building either as a panel to put on outside The cardboard, in addition to having the characteristic of making the panel fairly rigifdfand easy to handle and install, has the further very important advantage of providing insulating qualities to the wall or like portion of a building to which l 'the panel is applied. Due tothel-air chambers 35 I2 provided by the corrugated cardboard, a dead air space will b e established in back of sheet 2 and because of this, heat can be retained better in the building and cold prevented from penetrating to the interior. Since the backing sheet 3 has a smooth surface and maintains a substantiallynat surface for the 4back of the panel, any rough surfaces Ato be covered will be considerably improved.

In making the panel from sheets 2 and 3, sheet 3 of the cardboard is preferably4 cut slightly smaller'than sheet 2 and when the two are adhered together, the sheets are oiset with respect to each other so .that the marginal portions I3 and I4 adjacent the top and one end of sheet 3 extend beyond the top edgeand-like end edge of sheet 2 and the marginal portions I5 and Ii at the bottom and the opposite end of sheet I2 extend beyond the bottom edge and like end edge f of the cardboard. This arrangement permits shiplap Joints between the panels when they are applied to a wall surface. Thus, as seen in Figure 1, sheet 2 of the full panel shown will overlap the cardboard sheet 3 of the panels below it and at the left end, and the cardboard sheet 3 will be overlapped by sheets 2 of the panels above it and at the right end. Due to sheet 2 being slightly larger than sheet 3, the marginal edges of sheets 3 when the panels are applied will be slightly spageprrom eaiiether. 'rmsinsures that sheets 2 offladjacent panels will always have abutting edges. insures a smooth finished surface by the plurality of panels and one which willbe properly sealed. In applying the panels, the overlapped portions will be adhered together by a suitable adhesive such as that employed in adhering sheets 2 and 3 together.

Although the sheet is shown as formed to simulate brick, it may be smooth on its exposed surface and need not have the granules embedded therein. The sheet 2 is shown as being out from a roll at the center of the simulated vertical mortar joints and at one edge of a simulated horizontal mortar joint but this is by way of example only. The panels,.when applied in abutting relation, should disclose uniform mortar joints.

As shown in Figure 4, the treated corrugated cardboard sheet 3 need not have the corrugated sheet covered on both sides by heavy sheets. In the panel construction shown in Figure 4 the corrugated sheet Il is provided with a covering sheet I' on one side only and the other side of the corrugated sheet is adhered directly to the back of sheet 2, said sheet 2 performing'the function of the other sheet 9 of the corrugated cardboard shown in Figure 3.

If additional insulating qualities should be desired and more rigidity given to the panel, such can be accomplished by using double corrugated cardboard 4Il as shown in Figure 5. The two corrugated sheets I8 and I9 have an interposed common sheet 20 and surface sheets 2| and 22. The back of sheet 2 of the panel means is adhered directly to an outer paper sheet of the double corrugated cardboard suchvas sheet 2|.

Instead of having the top marginal portion of cardboard 3 extending beyond sheet 2 when the sheets are adhered together, sheet 2 may have a continuous depressed portion which will be overlapped by the adjacent panel positioned above.l Such a construction is shown in Figure 6 wherein the upper marginal portion of sheet 2 This overlapping arrangement on an adjacent panel.

is provided with an integral strip 23 extending to the upper edge of sheet 3. The thickness of this strip 23 is the same as the thickness of the depressed portions simulating mortar joints. The bottom marginal portion I5 of sheet 2 of the panel will be the same as shown in Figures 1 and 2 so that it can overlap the like strip 23 TheA lower edge of a panel will be so positioned overstrip 23 that the mortar groove 8' will be properly indicated.

Being aware of the possibilities of modiiications in the particular structures herein described without departing from the fundamental principles of my invention, I do not intend that their scope be limited except as set forth by the appended claim.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

A unitary building material panel comprising a straight-edged rectangular sheet of bitumensaturated brous material coated with bitumen material on one surface, a separately formed straight-edged rectangular sheet of corrugated cardboard provided with its edge surfaces at right angles to its face surfaces and having an imperforate covering on at least one surface thereof and said sheet being treated with a mixture of asphalts in order to repel water and resist deterioration by living organisms, and means for adhering the two sheets together with the bitumen coated surface of the iirst named sheet and the'imperforate covering of the cardboard sheet presented as exposed surfaces of the panel,

said bitumen-saturated sheet being slightly wider and longer than the cardboard sheet and said sheets being positioned withrespect to each other that the marginal edges of one end and one side of the bitumen-saturated sheet will extend beyond the marginal edges of a like end and side of the cardboard sheet by a predetermined distance and the marginal edges of the remaining end and side of said bitumen-saturated sheet will be short of the marginal edges of the remaining end and side of said cardboard sheet by a predetermined distance less than the rst predetermined distance so that when said panel is positioned adjacent like panels the edges of the bitumen-saturated sheets will abut each other and the edges of the cardboard sheets will be in slightly spaced relation.

RICHARD N. WILLIAMS. 

